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Difficulty: EasyPuzzle Details

A bank customer had $100 in his account. He then made 6 withdrawals, totalling $100. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals     Balance left
     $50             $50
      25              25
      10              15
       8               7
       5               2
       2               0
     ---             ---
    $100             $99

When he added up the columns as above, he assumed that he must owe $1 to the bank. Was he right?

Show Answer Print Puzzle
[Ref: ZEZC]  

Answer:
There is no reason whatever why the customer's original deposit of $100 should equal the total of the balances left after each withdrawal. The total of withdrawals in the left-hand column must always equal $100, but it is purely a coincidence that the total of the right-hand column is close to $100. For example:

Withdrawals     Balance left
      $5             $95
      10              85
      85               0
     ---             ---
   $100             $180


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